Door-lock.



I. HAMMER.

DOOR LOCK.

LA Y APPLICATION FI'LEDJULY l17, 191e. 1,289,742. Patented Dec. 31,1918r 1 2 SHEETS-SHEET u. P@.l

A TOHWEYS' l. HAMMER.

DOOR 100K.

APPLICATION FILED JULY 17. l9l8.

1,289,742. Patented 1161. 31,1918.

2 SHEETS-SHEET 2.

provided.

ernten.

ISAAC HAMMER, OF NEW YORK, N. Y.

` Doon-Loox.

Application tiled July 17. 1918.

T0 all trimm 'if may concern.'

Be it known that I` lsziao HAMMER, a citizen of the United States, and a resident of the citv of ew York. borough of the Bronrnin the county of Brons and State of New York, have invented a new and lmproved Door-Lock, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to provide a lock adjustable for being released by a key; to provide means for throwing a bolt operable at both sides of a door; to provide an adjustment.L at one side of the lock so arranged. that the lock may not be operated from the opposite side thereof; and to simplify the construction of the lock.

` Drawings.

Figure 1 is a face view showing a frag ment of av door having a knob for operating the herein disclosed lock and a key plate for assisting therein; p

Fig. 2 shows a fragment of the reverse side of the door and of the lock and shackles therefor; l

Fig. 3 is a detail showing a fragment of the lock, the adjusting lever being thrown into one of the many positions to which it may be moved;

Fig. 4 is a similar view showin the adjusting lever moved in the opposite direction;

Fig. 5 is a vert-ical section of the lock, the section being taken as on the line 5-5 in Fig. 6; "j

Fig. 6 is a horizontal section of the construction shown in Fig. 5, the section being taken as on the line' 6-6 in Fig. 5;

Fig. 7 is a detail view showing part of the operating mechanism o f the lock as mounted on the bottom plates thereof;

Fig. 8 is a detail view showing the boltthrowing mechanism with which the lock is Description. As seen in the drawings, the lock is provided with a case 12. lllhecase 12 has an eX- tension 13'in which squared perforations let are formed for the passagev of shackles 15.

The shackles 15 are perforated toI receive the bolts 16 when said bolts are moved therethrough. The side walls of the perforations 14 are provided with perforations to- Specication of Letters Patent.

Patented Dec. 31, 1918.

Serial No. 245,391.

aline with the perforations in the shackles 15 when said shackles are fully extended through the perforations in the extension 13. rl`he bolts 16 are integrally mounted on a body portion 17. The body portion 17 has a slot 18 formed therein. through which extends a guide bar 19. The body portion 17 has a recess 2O to receive the ward arms 21 and 22, respectively., for moving the body portion to project and retract the bolts 16. The ward arms 21 and 22 are mounted on the short shafts 23 and '24, respectively. The shaft has `iixedly attached thereto a mutilated ratchet wheel 25, the teeth of which are normally engaged by a'fpawl 26, to prevent the retractive rotation of said ratchet wheel. The pawl 26 is 'normally held in engagement with the ratchet wheel 25, by a spring 27, when said pawl is I.' it rocked on the pivot 28 by the operation of the lever 29. iNormally the body portion and bolts 16 connected therewith are held in extended position by the lug 30. The lug 30 is normally engaged by an offset 31 on the latch lever 32. The latdh lever 32, shown best in Fig. 8,. is pivotally mounted on the body portion 17 by the stud shaftl 33. The latch lever 32 has a lateral extension 34, which extends into the recess 2O in the path of the arms 21 and 22. Theofi'ice of the eX- tension 34 is to enable the arms 2l and 22 to lift the lever 32, and the free end thereof having the offset 3l with the result that the shoulder of the oii'set 31 is lifted out of engagement with the lug 30. This arrangement of the lever 32 admits of the retraction of the body portion 17 and the bolts 16 connected therewith.

As seen best in Fig. 8 of the drawings, the odset 31 of the latch 32 falls behind and engages from the rear side, the lug 30. In this position, 4the body portion 17 and bolts 16 are prevented from being advanced or moved to engage the shackles 15.

The recess 20 above referred to is formed between the lateral extensions 35, the lower surfaces of which are curved to form cutaway portions 36, which permit the passage of the arms 21 and 22. The latch 32 is normally held against the lug 30 by a spring 37. The shafts 23 and 24 are.provided with manipulating handles 38 and 39, respectively. T he handle 39 is at the outside of the door adjacent the key plate 40. The

y must use the key til.

shaft 24 with which the handle 39 is connected, is provided with the ratchet wheel Q5, as seen best in Fig. T of the drawings.

To release the said wheel, the pin barrel 41 otl a cylinder lock is rotated to the position shown by solid lines in Fig. 7 of the drawings. where the extension l2 is shown as lifted under the tail of the lever 29. The short end ot said lever rocks saidpawl to lit't the tooth thereof out of 'engagement with said wheel. The pin barrel l1 is rotated b v means of a key 43. which enters the kcyway 48 at the outside of the door ttl. The crank 4G is pivotally attached to the. pin 45. 'lhe shank 50 ot' the button 4T rides on the edge of the plate 51.

When the button JJ is in the position indicated by broken lilies in Fig. 5 of the drawings. the lever 29 may be operated b v rotating the key barrel l1 and extension 42 to lit't the pawl 2G from engagement with the wheel 25. ll'hen the button -LT is moved to the position i'rflicated by broken lines in Fig. l ot' the drawings.l the shank 50 otl the said button passes below the edge of the plate 51. to prevent the lift ot' the lever 29. thereby rendering it impossible to turn the pin barrel 41, or to dislodge the pawl 2G from engagement with the wheel 25. When the button 4T is carried to the upper edge ot' the button 51. as indicated in Fig. 3 of the drawings, the lever 2t is held permanently in position so that 'the pawl 2G is permanently disengaged from the wheel The etl'ect of the movement ofthe button 27 to the three positions is as follows: person on leaving the room closes' the door 4t). the shackles 15 passing through the perforations 1l in the extension 13, so that tbe perforations in the shackles and side walls ot' the `evtension 13 aline with the bolts 1G.` rl`hel handle 39 is then turned to shoot the boltsI lt. the arm .22 enttring the recess 20 between the extensions 35 to first lift the lever 32 and to advance the body portion 1T and bolts 1G. At the full forward movement ot' the body portion 17, the arm 22 passes out ot the, `recess 20. permitting the extension 2H and the. lever 32 connected therewith to drop so that the otl'set 3l passes behind the lug 30. A

The person returning to the door cannot move the handle. 39 and shatt 23 connected therewith retraetively` for the reason that'n the pawl QG has engaged the teeth of thewheel 25 to prevent the reverse rotation of the sha tt. 2t. To release the pawl. the pa rtv ll'ith the key 43 inserted in the pin barrel l1. the same may be turned until the extension 42 is lifted to thel position shown in Fig. 5 of the drawings, which rocks the lever 29 to litt the toothed end of the pawl 2G. This frees the ratchet Wheel 25 and permits the rotation of the shaft 24, with the eeot that the arm connected therewith ente-rs the recess Q0 to lift the lever 32 and otiiset 31 out of engagement with the lug 30. The continuation of the rotation of the shaft 2l results in retraeting the body portion 17 and bolts 1G out ot' engagement with the shackles 15. The door is then free to be opened.

To withdraw the key 13. it is necessary to re-rotate the pin barrel stl. which permits the reingagement ot the pawl 2t; with the wheel 25. Vl`here-t'ore. it is obvious that the handle 39 cannot be turned to ettect the withdrawal ot the bolts lo. The bolts 16 are shot by turning the handle 3S after the person 1111s closed the door. 'from the inside otl the room. the shaft .23 and arm 22'being operated to this end.

lt' it is desired to leave the lock so that the door may be opened t'rom the outside by turning the handle 235)- at any time, the button l? is moved to the position shown in Fig. h. ln thisl position. the lever 20 is rocked and held in the position where the pawl 2li is disengaged -t`rom the ratchet wheel 25. Nhile the parts are in this position. both shafts 2l and 23 are freely rotatable.

lt' it is desired to prevent the door from being opened t'rom the nutsidevby the use of thekey 43, the button 4T is moved to the position shown in Fig. T ot' the drawings. ln this position. the lever 29 is held from rocking and maintained out ot' engagement with the pawl 2o which continues to engage the wheel 25 to prevent the retractive rotation of the shat't :il and handle 39.

lfVhen installing the lock, the shackle block 5:2 is held by screws to the door frame, said screws'being preferably driven from the side ot' the block. t-he heads of the screws resting between said block and the edge of the. door. thereby rendering it substantially impossible to remove or force the block bodying a key-controlled mechanism 'operai ble for disengaging said )awl member from said ratchet toothed mem er.

2. A. door lock. comprising a reciprocatory body memberfsa-id .member carrying locking bolts and havingI an engagement recess for moving said body memben to. end .from

tasas/4.a D

A' the active service position of said lock; a

plurality of shafts,

plurality of shafts, each having a handle extended from said lock in opposite directions and each provided with an extension adapted for engaging said recess for moving said body portion; a stop member rigidly mounted in said lock in fixed relation; a latch pivotally connected With said body member for engaging saidl stop member to prevent the movement of said body ymember; and means operatively connecting said latch and said shafts for lifting said latch ont of engagement with said stop member. v

3. A door lock comprising a reciprocating body member, said member carrying locking bolts and having an engagement recess for moving said body member to and from the active service position of said lock; a each having a handle extended from said lock in opposite directions and each provided with an extension adapted for engaging said recess for moving said body portion; a stop member rigidly mounted in said lock in fixed relation; a latch pivotally connected with said body member for engaging said stop meinber to prevent the movement of said body member; and means operatively said latch and said shafts for lifting said latch out ofengagement with said stop member, said means embodying an extension of said latch normally resting in the path of the extensions on said shafts in said recess of said body member to be lifted thereinto to elevate the engaging end of said latch.

4. A door lock comprising a reciproca-ting body member, said member carrying locking bolts, and having an engagement recess for moving said body member to and from the active service position of said lock; a plurality of shafts, each having a handle extended from said lock in opposite directions and each provided With an extension adapted for engaging said recess for moving said body portion; a stop member rigidly mounted in said lock in fixed relation; a latch pivotally connected with said body member for engaging said stop member to prevent the movement of said body member; means operatively connecting said latch and said shafts for lifting said latch out of engagement with said stop member; means for controlling one Ofsaid shafts for preventing the retractive rotation thereof, said means embodying a ratchet Wheel rigidly mounted on'said control shaft, and a pawl normally engaging said ratchet Wheel; and a key-controlled rotary member having an extension for rocking 'said pawl out of engagement with said ratchet Wheel.

5. A door lock comprising'a reciprocatory body member, said membercarrying locking connectingbolts and having an engagement recess for moving said body member to and from the active service" position of said lock; a plurality of shafts, each having a handle yextended from said lock in opposite directions and each provided with an extension adapt ed for engaging said recess for moving said body portion; a stop member rigidly mounted in said lock in fixed relation; a latch pivotally connected with said body member for engaging said stop member to prevent the movement of said body member; means operatively connecting said latch and said shafts for lifting said latch out of engage- ,ment with said stop member; means for controlling one of said shafts for preventing the retractive rotation thereof, said means embodying a ratchet Wheel rigidly mounted on said controlled shaft, and a pavvl normally i engaging said ratchet Wheel; a key-con'- trolled rotary member having an extension for rocking said paWl out of engagement With said ratchet Wheel; and means manually operative for preventing` said key-controlled member from engaging said paivl, said means embodying a rocking lever intermediate said key-controlled member and said pawl, a guide plate, and a crank movable pivotally conne/sied with said body member for engaging said stop member to prevent the movement of said body member; means operatively connecting said, latch and lsaid shafts for ment with said stop member; means for controlling one of said shafts for preventing the retractive rotation thereof, said means embodying a ratchet wheel rigidly mounted on said control shaft, and a paWl normally engaging said ratchet wheel; a key-controlled rotary member having an extension for reckiiigsaid paivl out of engagement with said ratchet Wheel; and means for controlling the' movement of said latch, said means embodying a rocking lever engaging said latch, and an adjustable device controlling the position of said lever, said'device being manually/.op- ,Y

erabley at the inner-sideA of said lock.

7. A door lock comprising a reciprocating body member, said member .carrying locking bolts and havin ain engagement recess for moving saidbo ymember to and from the active service position of said lock; a

lifting said latch out of engage.

plurality of shafts, each having a handle eX- l .ed in said lockin fixed relation; a latch pivotally connected with said body member for engaging said. stop member -to prevent the movement of said body member; means o lperatively connecting said latch and Said shafts for lifting said latch out of'enga ement with said stop member; means or controlling one of said shafts for preventing 'the retraetive rotation thereof, said means embodying a ratchet Wheel rigidly mounted onvsaid controlled shaft, and a pawl'normally engaging said ratchet Wheel; a keycontrolled rotary member having an extension for rocking said paw] out of engage-v i ment with said ratchet wheel; means for controlling the movement of said latch, said means embodying a rocking lever engaging said latch, and an adjustable device con- -trolling the position of said lever, said de vice being manually operable at the inner side of said lock; and a guide plate for hold-` ing said device in position where said lever holds said latch inoperatively or prevents said key-controlled member from operating said latch at the will of the operator. f

ISAAC HAMMER.

Copies of this patent may be obtained forve cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

